Bottom up Parsing with example
What do you mean by the term bottom up Parsing with appropriate example?
Expert
The Parsing is a technique in which the Parse tree is made from the input language string beginning from the leaves and going up to the root node.
Example: Assume that there is a grammar G having a production E:
E->E*E
and an input string x*y.
The left hand side of any production is termed as Handles. Therefore the handle for this instance is E.
The shift action is just pushing an input symbol on the stack. If the right hand side of a production is matched with the stack elements which are popped and replaced by the corresponding Handle. This is the reduce action.
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